Murray asked someone who witnessed the violent attack, “I just hit my friend with a baseball bat. What do I do?”

The witness told him to go home and call 911.

“He tried to attack me and then me and him got into a fight but I had a baseball bat,” Murray said.

This is a March 2016 mug shot for 16-year-old Dillen Murray, who viciously beat 15-year-old Giovanni Diaz to death today in Lake Wales. The mugshot was taken when he was arrested for 2 counts of battery also against Giovanni pic.twitter.com/KRgkb54Kkx

Days before Murray killed the 15-year-old, Judd said he told a friend, “I wonder what it’s like to murder someone.”

Murray’s Facebook had troubling images posted, including a murderous clown and a photo of the Joker covered in blood, WFTV reports.

“Giovanni Diaz was a true joy to teach,” Superintendent Jacqueline Byrd said in a statement. “He was happy and fun-loving, intelligent and analytical. He and his principal used to play a game at lunchtime. Giovanni had a Rubik’s Cube, and Principal Windham would mix up the colors and watch as Giovanni once again solved the puzzle.

“Giovanni had a very bright future ahead of him that ended brutally, senselessly, and much too soon. The Diaz family is in our hearts and prayers."

Judd said Murray "has absolutely no previous run-ins with the law” but has been charged with two counts of battery, one of which involved Diaz. He also was previously charged with domestic battery for allegedly attacking his father, according to ABC News.

Murray is charged with first-degree murder, possession of less than 20 grams of marijuana and possession of drug paraphernalia. Police have requested he be tried as an adult.